But you're forgetting a crucial difference in your scenario vs the Duggar scenario. Your reference to half-siblings, step siblings, and your reference to your step mother as "step monster" all indicate a broken home and strife and discord in the home. The Duggars, however, are a very happy family, where the father and mother are very much in love and the kids all know that their parents love them and they all love each other, and there aren't all kinds of divorces and remarraiges, resulting in all the "steps" and "halves" that we have in alot of families these days.
The Duggar kids seem to be perfectly happy with their lives and have no interest in living the way some of you on this board think they should live. Even if, as someone else put it, they were to see what it's like outside of their "insulated worlds", that doesn't mean that they would like what they see on the other side.
For some reason, we all like to feel sorry for people who don't have the same kind of lifestyle that we have, or that we think a person should have, yet many of those people are perfectly happy and content. Before my Mom died, she and Dad never went on any trips. They would go out to eat fairly often, but other than that, their ideal routine was just to stay home all the time and never go anywhere. I like to go places and I found their lifestyle incredibly boring and felt like they should go out and roadtrips, just because that is MY ideal lifestyle. But that doesn't mean that it's ideal for them.
Some of my family think that I'm wasting a college education and not living up to my potential just because I'm working at Walmart. I, however, am perfectly happy and content with my job, even if I don't have the ideal job that some of you, and some of my family, think one should pursue. So I'm not a Doctor, or a lawyer, or a CEO or anything like that. So what? I'm happy and content with my job and what I do for a living, even if others in my family cast judgement on me for "just working at Walmart".
It's very easy to cast judgement on the Duggar parents and pity the Duggar kids because they are "stuck" having to take care of their younger siblings. But it looks to me like they would have it no other way and that they are perfectly content with where they are in life. I'm sometimes tempted to feel sorry for the Amish because of their "boring" lifestyle...no TV, wearing silly clothes, not experiencing life beyond their collective, etc. But I just have to remind myself that just because I'm happy in my lifestyle, that doesn't mean someone else would be, and just because I find another lifestyle boring, that doesn't mean that those people can't be perfectly happy and content where they're at.